People will just start commuting to further away places like from barcelona to london: https://www.theguardian.com/cities/2015/aug/11/commuting-from-barcelona-a

People will just start commuting to further away places like from barcelona to london: https://www.theguardian.com/cities/2015/aug/11/commuting-from-barcelona-a-london-worker-who-makes-it-pay https://www.theguardian.com/cities/2015/aug/11/commuting-fro... You can argue for an economical benefit, but it's very hard to argue that they are larger than the costs.